• All Community
    • All Community
    • Forums
    • Ideas
    • Blogs
Advanced

Not what you are looking for? Ask the experts!

Kudos1 Stats

Norton Security .NET dll false positive

Hi everyone :

        A few day ago, bought a new computer, installed everything and in the cpying process from my backup drive, Norton flags the .NET compiled dll as viruses. First time it happens to me. I'm using this antivirus solution for already 6 years.

Replies

Kudos1 Stats

Re: Norton Security .NET dll false positive

When you got the new computer, did you check to see if there was any  security product other than Norton included? Even a trial version would need to be removed using the removal utility for that software.  Having more than one security product installed can give false detections.

What is being detected on the .NET files?

Things happen. Export/Backup your Norton Password Manager data.
Kudos1 Stats

Re: Norton Security .NET dll false positive

Yes, the computer came with another antivirus I uninstalled before installing Norton. I'll upload the Norton screen

File Attachment: 
Kudos1 Stats

Re: Norton Security .NET dll false positive

Did you use the removal utility for that security software? If you tell us what the software was, we can guide you to the correct utility.

Instructions to post screenshots can be found here
https://community.norton.com/forums/how-post-image-forums-0

From that detection screen, click on the Options link at the bottom right. Look for an option to report the file to Norton. You should also be able to restore the file and tell Norton to ignore it. But only do this if you are absolutely sure it is safe. You might want to wait until you hear back from your Norton submission.

Things happen. Export/Backup your Norton Password Manager data.
Kudos1 Stats

Re: Norton Security .NET dll false positive

Thanks for the concern. I restored them as soon Norton pops up warning windows. Next time I'll send a submission. As I know that the dll is a known one I restore them. The false positive is not a big deal but I wanted to notify it. 

Kudos1 Stats

Re: Norton Security .NET dll false positive

Sorry , the computer came with a trial version of McAfee antivirus.

Kudos1 Stats

Re: Norton Security .NET dll false positive

And did you use the Mcafee Consumer Product Removal tool from here?   https://www5.nohold.net/McAfeeEndUser/ukp.aspx?pid=3&login=1&ruleid=1107...

That will ensure there are no remnants that might interfere with your Norton product.

Things happen. Export/Backup your Norton Password Manager data.
Kudos1 Stats

Re: Norton Security .NET dll false positive

A new laptop with Win 10 had McAfee LiveSafe installed.  I started the Norton download process and it asked if I wanted to uninstall the McAfee software.  I clicked the 'uninstall' button and it's been spinning on that window for an hour.  I clicked the 'cancel' button to no effect.  What now?

Kudos1 Stats

Re: Norton Security .NET dll false positive

Restart your laptop and then manually remove the Mcafee product using the MCPR tool in step 2 on this page.   

Then restart your computer again and try installing Norton again.

Things happen. Export/Backup your Norton Password Manager data.
Kudos1 Stats

Re: Norton Security .NET dll false positive

It turns out there was a question that only appeared when I clicked on the shaded McAfee icon, asking if they should proceed.  I clicked 'yes' and a window popped up showing the removal progress to that point, so apparently it had been doing something in the background.  The reported progress was about 50% and finished about 10 minutes later.  There was then a second McAfee app to be removed and it was more straightforward, taking only a minute or so.  Luckily my earlier 'cancel' request was not obeyed, and the installation then began.  All seems to have succeeded.  I don't know why it took so long to remove, or why the question to proceed was not in a pop-up.  Gotta love Windows.  Thanks for the help.

Kudos1 Stats

Re: Norton Security .NET dll false positive

Glad you got things sorted. Keep the MCPR tool in mind in case you see any strange behaviour. 

I'm sort of surprised that McAfee allowed Norton to uninstall it. It seems that if Norton can do it, any other app (malware) could also uninstall it leaving the user defenceless.Unless the AV developers have some kind of agreement???

Things happen. Export/Backup your Norton Password Manager data.
Kudos1 Stats

Re: Norton Security .NET dll false positive

I just checked in the installed software list and McAfee is gone, while Norton is there.  I see your point about the malware, so you may be correct regarding an agreement.

Thanks for the help - much appreciated.

This thread is closed from further comment. Please visit the forum to start a new thread.